Steel plate cold rolling device with flatness self-checking function

Abstract

The invention discloses a steel plate cold rolling device with a flatness self-checking function, and relates to the technical field of steel plate cold rolling devices. Comprising a base, an electric lifting rod, a cold rolling self-checking assembly, a transmission connecting piece, a support shell and a cold rolling roller, a detection plate is matched with detection rollers to screen the flatness of a steel plate, the part with qualified flatness can directly pass through a gap between the detection rollers, and the part with unqualified flatness drives the detection plate to deflect around a transverse rod; when the detection rollers deflect along with the detection plate, the distance between the upper detection roller and the lower detection roller is increased, so that an unqualified area of the steel plate passes through, the detection plate deflects to drive the detection elements to operate, and the purpose of detecting and screening is achieved. The mark assembly is driven to deflect through deflection of the detection plate, the mark ball in the mark shell makes contact with the unqualified area and extrudes the unqualified area, when the mark ball rolls, mark liquid attached to the mark ball can be attached to the unqualified area, and therefore the purpose of marking the unqualified area is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of steel plate cold rolling devices, in particular to a steel plate cold rolling device with a flatness self-checking function. Background Art

[0002] Cold rolling mill is one of the most important equipment in the metal processing industry. It is mainly used to roll metal sheets or strips at room temperature to achieve the required dimensional accuracy, shape specifications and physical properties. The working principle of the cold rolling mill is based on the action of mechanical force. Through a series of precisely designed rollers and transmission devices, the metal is pressed, stretched, bent and other processing operations are performed to change its shape, size and performance. Through cold rolling, the mechanical properties of metal materials, such as strength, hardness, toughness, etc., can be significantly improved, while improving its surface quality, such as smoothness, flatness, etc. In addition, cold rolling can also realize the continuous and automated production of metal materials, improve production efficiency and quality stability.

[0003] When cold rolling steel plates, if there are stains on the surface of the cold rolling roller, it will have an adverse effect on the quality of cold rolling. In severe cases, the entire batch of steel plates will be unusable, causing a large amount of economic losses. At the same time, it will also cause damage to the cold rolling roller itself. At present, the cold rolling equipment on the market lacks an effective method for detecting the flatness of formed steel plates. Even if some equipment has a self-inspection function, it is impossible to mark the unqualified parts of the steel plates, which is not conducive to the subsequent inspection and analysis by the staff. Summary of the invention

[0004] The object of the present invention is to provide a steel plate cold rolling device with a flatness self-checking function to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a steel plate cold rolling device with a flatness self-inspection function, comprising a base, an electric lifting rod is installed on the base, a cold rolling self-inspection component is installed on the output shaft of the electric lifting rod, a bracket shell is installed on the base, cold rolling rollers are symmetrically and rotatably installed on the bracket shell, and transmission shafts at both ends of the cold rolling rollers pass through the bracket shell and are installed with transmission connectors; the cold rolling self-inspection component comprises a bottom plate and a top plate, a connecting column is installed between the bottom plate and the top plate, a first detection component and a second detection component are symmetrically and slidably installed on the connecting column, and the bottom plate is installed on the output shaft of the electric lifting rod.

[0006] The steel plate cold rolling device is externally connected to a control cabinet, and a control system is arranged inside the control cabinet. The control system is used to control the entire steel plate cold rolling device.

[0007] Preferably, the cold rolling self-inspection component also includes an electric telescopic device and a side plate. The electric telescopic device is installed on the top plate. The output shaft of the electric telescopic device passes through the top plate and is connected to the first detection component. The side plate is installed between the top plate and the bottom plate. A transmission gear is rotatably installed on the side plate. The first detection component and the second detection component are meshed with the transmission gear for transmission. Cleaning components are installed on both the bottom plate and the top plate.

[0008] The thin steel plate coil is positioned and installed, and the steel plate end is passed through the cold rolling roller and the cold rolling self-inspection component to connect the steel plate end to the winder, the control system starts the electric telescopic device, the output shaft of the electric telescopic device drives the first detection component to slide down along the connecting column, the rack on the first detection component drives the transmission gear to rotate, the transmission gear drives the rack on the second detection component to slide, the rack on the second detection component drives the second detection component to slide on the connecting column, the detection rollers on the first detection component and the second detection component approach each other until the distance between the two is consistent with the thickness of the steel plate to be tested, and then the control system starts the electric lifting rod, the electric lifting rod drives the entire cold rolling self-inspection component to move up and down, so that the gap between the detection rollers is aligned with the gap between the cold rolling rollers, and they are kept on the same horizontal plane, the control system starts the drive motor, the drive motor drives the cold rolling roller to rotate, the cold rolling roller rotates and cold rolls the steel plate, and the cold-rolled steel plate is wound by the winder.

[0009] Preferably, the first detection component includes a support plate, which is slidably mounted on a connecting column, with racks mounted on both sides of the support plate, the racks meshing with transmission gears for transmission, two cross bars mounted inside the support plate, detection elements being equidistantly mounted on the cross bars and rotatably mounted, the detection elements on the two cross bars being staggered front to back, and the support plate being connected to the output shaft of the electric telescopic device.

[0010] Preferably, the detection element includes a detection plate and a detection terminal. The detection plate is rotatably mounted on a cross bar, the detection terminal is mounted on the cross bar, the detection terminal is located on one side of the detection plate, the detection terminal is in contact with the detection plate, a detection roller is rotatably mounted on the detection plate, a reset assembly is installed between the detection plate and the support plate, a marking assembly is installed on the detection plate, a transmission member is installed on one side of the detection plate close to the detection terminal, a ring ramp is provided on the transmission member, the transmission member is rotatably connected to the cross bar, and the transmission member is located inside the detection terminal.

[0011] When the cold-rolled steel plate passes through the cold-rolled self-inspection component, the surface of the steel plate will contact the inspection roller. When the surface flatness of the steel plate is qualified, the steel plate will pass smoothly through the gap between the inspection rollers. When the steel plate has undesirable conditions such as bulges or wave edges, the unqualified area of ​​the steel plate cannot directly pass through the inspection roller corresponding to the area due to the increased height. The raised part of the unqualified area pushes the inspection roller of the area, and the inspection roller drives the inspection plate to deflect around the cross bar. When the inspection roller deflects with the inspection plate, the distance between the upper and lower inspection rollers will increase, allowing the unqualified area of ​​the steel plate to pass.

[0012] Preferably, the marking assembly includes a marking shell, which is mounted on the detection plate. A marking liquid cavity is provided in the marking shell, and the marking liquid cavity is filled with marking liquid. A sliding rod is slidably mounted in the marking shell, and a telescopic spring is installed between the sliding rod and the marking shell. A baffle is installed at one end of the sliding rod, and the baffle is embedded in a groove in the marking liquid cavity. A transmission rod is installed on the baffle, and a marking ball is movably installed in the marking shell, and the marking ball and one end of the transmission rod abut against each other.

[0013] When the detection plate deflects, the marking assembly on it deflects synchronously and contacts the unqualified area. The marking ball in the marking shell contacts the unqualified area and generates extrusion, which causes the marking ball to slide slightly in the marking shell. The marking ball slides and squeezes the transmission rod, which drives the baffle and the sliding rod to slide. The baffle slides out of the engagement with the marking liquid cavity, and the marking liquid in the marking liquid cavity flows out from the gap between the baffle and the marking shell. The flowing marking liquid stains the marking ball. When the unqualified area slides, the friction force drives the marking ball to roll. When the marking ball rolls, the marking liquid stained on it will It is attached to the unqualified area, thereby achieving the purpose of marking the unqualified area; when the unqualified area passes, the compressed reset spring in the reset assembly rebounds, and the reset spring drives the contracted reset curved rod to extend when it rebounds, and the reset curved rod pushes the detection plate to deflect in the opposite direction, completing the reset of a single detection element; after the detection element is reset, the pressure on the marking ball disappears, and under the action of the elastic force of the telescopic spring, the sliding rod drives the baffle to engage with the groove on the marking liquid chamber again, so that the marking liquid in the marking liquid chamber cannot flow out, thereby preventing the marking liquid from leaking and causing pollution to the qualified area of ​​the steel plate.

[0014] Preferably, the detection terminal comprises a detection housing, a connecting piece and a sliding piece, the detection housing, the connecting piece and the sliding piece are all mounted on a cross bar, the transmission piece is located in the detection housing, a touch rod is mounted on the connecting piece, a ejector pin is slidably mounted on the sliding piece, an end housing is mounted on one end of the ejector pin, an elastic film is mounted in the end housing, a piezoelectric crystal is mounted between the elastic films, a detection spring is mounted between the ejector pin and the sliding piece, and one end of the ejector pin contacts the annular slope on the transmission piece;

[0015] When the steel plate cold rolling device is not running, the detection spring is in a naturally extended state, the feeler rod contacts one side of the elastic film, the elastic film does not deform, and the ejector pin contacts the lowest point of the annular slope.

[0016] When the detection plate deflects, it will synchronously drive the transmission part to deflect. When the transmission part deflects, the ejector pin will climb along the annular slope along with the lowest point of the annular slope. The ejector pin climbs and slides on the sliding part. The ejector pin drives the elastic film in the end shell and the feeler rod to squeeze each other. The elastic film is deformed after being squeezed and the pressure is transmitted to the piezoelectric crystal. According to the principle of piezoelectric effect, the piezoelectric crystal will generate an electrical signal after being compressed. The electrical signal is transmitted to the control system through a wire. When the range of the unqualified area is large, the longer the time for driving the detection plate to deflect, the longer the duration of the corresponding electrical signal. When the height of the protrusion and wave edge of the unqualified area is large, the larger the angle of driving the detection plate to deflect, the greater the intensity of the corresponding electrical signal. The control system can analyze the range and degree of the unqualified area based on this, and can realize positioning according to the position of a single detection element, thereby completing the flatness detection of the steel plate. When it is detected that the flatness of the steel plate is unqualified, the control system starts the cleaning component to clean the cold rolling roller. If the flatness is still unqualified after cleaning, the cold rolling is stopped and the staff checks the steel plate itself and other factors one by one.

[0017] Preferably, the reset assembly comprises a reset shell, which is mounted on the support plate, a reset bent rod is slidably mounted in the reset shell, a reset spring is mounted between the reset bent rod and the support plate, and the reset spring is located inside the reset shell.

[0018] Preferably, the cleaning assembly includes an electric telescopic rod and an air pump, the electric telescopic rod is respectively mounted on the top plate and the bottom plate, the air pump is respectively mounted on the top plate and the bottom plate, a scraper is mounted on the output shaft of the electric telescopic rod, and the air pump is connected to the inside of the scraper through a pipeline.

[0019] Before cold rolling, the control system starts the drive motor, and the output shaft of the drive motor drives the universal shaft to rotate, and the universal shaft drives the cold rolling roller to rotate through the transmission connecting piece. After that, the control system starts the electric telescopic rod, and the output shaft of the electric telescopic rod drives the scraper to extend forward, so that the scraper of the scraper is close to the cold rolling roller, so that only a small gap is left between the scraper and the cold rolling roller, and at the same time, the air pump is turned on, and the air pump draws the gas in the dust suction chamber through the pipeline, so that the dust suction chamber produces negative pressure, and the dust suction port produces suction. The generated suction removes the particles on the cold rolling roller. When there are attachments on the cold rolling roller, the shear force generated between the rotating cold rolling roller and the scraper scrapes off the attachments, and the scraped attachments slide from the slope surface of the scraper into the dust suction chamber with the suction, thereby realizing the surface cleaning of the cold rolling roller before cold rolling, and preventing the attachments and particles on the cold rolling roller from causing indentations on the steel plate during the cold rolling process.

[0020] Preferably, a scraper is provided on the scraper, one side of the scraper is a sloped surface, and the other side of the scraper is a concave surface, the concave surface is used to prevent position conflict with the cold rolling roller, a dust suction chamber is provided in the scraper, and a dust suction port is provided on one side of the scraper.

[0021] Preferably, the transmission connection piece is externally connected to a driving device, the driving device includes a driving motor, a universal shaft is mounted on the output shaft of the driving motor, and the universal shaft is connected to the cold rolling roller via the transmission connection piece.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The electric telescopic device is used to drive the first detection component to slide. The racks on the first detection component and the second detection component cooperate with the transmission gear to achieve the relative equidistant displacement of the first detection component and the second detection component, thereby achieving the purpose of adjusting the spacing between the detection rollers; the electric lifting rod drives the entire cold rolling self-inspection component to move up and down, so that the gap between the detection rollers is aligned with the gap between the cold rolling rollers and maintained at the same horizontal plane, thereby achieving the purpose of adjusting the position of the entire cold rolling self-inspection component.

[0024] 2. Use the detection plate and the detection roller to screen the flatness of the steel plate. The parts with qualified flatness can directly pass through the gap between the detection rollers. The parts with unqualified flatness drive the detection plate to deflect around the crossbar. When the detection roller deflects with the detection plate, the distance between the upper and lower detection rollers will increase, so that the unqualified area of ​​the steel plate passes through. The deflection of the detection plate drives the detection element to run, so as to achieve the purpose of detection and screening. When the unqualified area passes, the compressed reset spring in the reset assembly rebounds, and the reset spring rebounds to drive the contracted reset curved rod to extend. The reset curved rod pushes the detection plate to deflect in the opposite direction, so as to achieve the purpose of resetting a single detection element;

[0025] 3. The deflection of the detection plate drives the deflection of the marking component. The marking ball in the marking shell contacts and squeezes the unqualified area. The marking liquid in the marking liquid cavity flows out from the gap between the baffle and the marking shell and soaks the marking ball. When the marking ball rolls, the marking liquid on it adheres to the unqualified area, thereby achieving the purpose of marking the unqualified area. After the detection element is reset, the pressure on the marking ball disappears, and the sliding rod drives the baffle to engage with the groove on the marking liquid cavity again, so that the marking liquid in the marking liquid cavity cannot flow out, thereby preventing the marking liquid from leaking and polluting the qualified area of ​​the steel plate.

[0026] 4. Before cold rolling, the control system makes the cold rolling roller idle, and then uses the electric telescopic rod to make the scraper of the scraper close to the cold rolling roller, and at the same time turns on the air pump. The air pump draws the gas in the dust suction chamber through the pipeline, so that the dust suction chamber produces negative pressure, and the dust suction port produces suction. The generated suction removes the particles on the cold rolling roller, and the shear force generated between the rotating cold rolling roller and the scraper scrapes off the attachments. The scraped attachments slide from the slope surface of the scraper into the dust suction chamber with the suction, thereby realizing the surface cleaning of the cold rolling roller before cold rolling, and preventing the attachments and particles on the cold rolling roller from causing indentations on the steel plate during the cold rolling process.

[0027] 5. The deflection of the detection plate drives the deflection of the transmission part. The deflection of the transmission part drives the ejector pin to climb and compress the piezoelectric crystal to generate an electrical signal. The control system analyzes the scope and degree of the unqualified area according to the duration and intensity of the electrical signal, and can realize positioning according to the position of a single detection element, thereby completing the flatness detection of the steel plate. When the flatness of the steel plate is detected to be unqualified, the control system starts the cleaning component to clean the cold rolling roller, and then cooperates with the cold rolling self-inspection component to check and screen the adverse factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an overall stereogram of the steel plate cold rolling device of the present invention;

[0029] Figure 2 It is a three-dimensional diagram of the steel plate cold rolling device of the present invention;

[0030] Figure 3 The three-dimensional cold rolling self-inspection component of the present invention Figure 1 ;

[0031] Figure 4 For the present invention Figure 3 A partial enlarged view of the middle A area;

[0032] Figure 5 The cold rolling self-inspection component of the present invention is a three-dimensional Figure 2 ;

[0033] Figure 6 For the present invention Figure 5 A partial enlarged view of the middle B area;

[0034] Figure 7 is a three-dimensional diagram of a first detection assembly of the present invention;

[0035] Figure 8 A three-dimensional diagram of the detection element of the present invention;

[0036] Fig. 9 is a three-dimensional diagram of the reset assembly of the present invention;

[0037] Fig.10 For the present invention Fig. 9 A partial enlarged view of the middle C area;

[0038] Fig.11 It is a three-dimensional diagram of the marking assembly of the present invention.

[0039] In the figure: 1. base; 2. electric lifting rod; 3. cold rolling self-inspection component; 4. transmission connector; 5. bracket shell; 6. cold rolling roller; 31. bottom plate; 32. top plate; 33. electric telescopic device; 34. cleaning component; 35. side plate; 36. first detection component; 37. second detection component; 38. detection element; 39. connecting column; 341. air pump; 342. electric telescopic rod; 343. scraper; 3431. dust suction chamber; 3432. scraper; 3433. slope surface; 3434. concave surface; 3435. dust suction port; 351. transmission gear; 361. support plate; 362. cross bar; 363. rack; 381. reset Component; 382, ​​detection roller; 383, detection plate; 384, marking component; 385, detection terminal; 3811, reset shell; 3812, reset spring; 3813, reset bent rod; 3851, detection shell; 3852, connecting piece; 3853, touch rod; 3854, ejector pin; 3855, sliding part; 3856, detection spring; 3857, end shell; 3858, piezoelectric crystal; 3859, elastic film; 3841, marking shell; 3842, marking ball; 3843, marking liquid chamber; 3844, baffle; 3845, transmission rod; 3846, sliding rod; 3847, telescopic spring; 3831, transmission part. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] like Figure 1-Figure 11 As shown, the present invention provides a technical solution for a steel plate cold rolling device with a flatness self-inspection function: it includes a base 1, an electric lifting rod 2 is installed on the base 1, a cold rolling self-inspection component 3 is installed on the output shaft of the electric lifting rod 2, a bracket shell 5 is installed on the base 1, a cold rolling roller 6 is symmetrically and rotatably installed on the bracket shell 5, and the transmission shafts at both ends of the cold rolling roller 6 pass through the bracket shell 5 and are installed with a transmission connector 4; the cold rolling self-inspection component 3 includes a bottom plate 31 and a top plate 32, a connecting column 39 is installed between the bottom plate 31 and the top plate 32, a first detection component 36 and a second detection component 37 are symmetrically and slidably installed on the connecting column 39, and the bottom plate 31 is installed on the output shaft of the electric lifting rod 2.

[0042] The steel plate cold rolling device is externally connected to a control cabinet, and a control system is arranged inside the control cabinet. The control system is used to control the entire steel plate cold rolling device.

[0043] The transmission connecting member 4 is externally connected with a driving device, the driving device includes a driving motor, a universal shaft is installed on the output shaft of the driving motor, and the universal shaft is connected to the cold rolling roller 6 through the transmission connecting member 4.

[0044] The cleaning assembly 34 includes an electric telescopic rod 342 and an air pump 341. The electric telescopic rod 342 is respectively mounted on the top plate 32 and the bottom plate 31. The air pump 341 is respectively mounted on the top plate 32 and the bottom plate 31. A scraper 343 is mounted on the output shaft of the electric telescopic rod 342. The air pump 341 is connected to the inside of the scraper 343 through a pipeline.

[0045] A scraper 3432 is provided on the scraper 343, one side of the scraper 3432 is a slope surface 3433, and the other side of the scraper 3432 is a concave surface 3434, which is used to prevent position conflict with the cold rolling roller 6. A dust suction chamber 3431 is provided in the scraper 343, and a dust suction port 3435 is provided on one side of the scraper 343.

[0046] The cold rolling self-inspection component 3 also includes an electric telescopic device 33 and a side plate 35. The electric telescopic device 33 is installed on the top plate 32. The output shaft of the electric telescopic device 33 passes through the top plate 32 and is connected to the first detection component 36. The side plate 35 is installed between the top plate 32 and the bottom plate 31. A transmission gear 351 is rotatably installed on the side plate 35. The first detection component 36 and the second detection component 37 are meshed with the transmission gear 351 for transmission. Cleaning components 34 are installed on both the bottom plate 31 and the top plate 32.

[0047] The first detection component 36 includes a support plate 361, which is slidably installed on the connecting column 39. Racks 363 are installed on both sides of the support plate 361. The racks 363 are engaged with the transmission gear 351 for transmission. Two cross bars 362 are installed in the support plate 361. Detection elements 38 are rotatably installed on the cross bars 362 at equal intervals. The detection elements 38 on the two cross bars 362 are staggered front and back. The support plate 361 is connected to the output shaft of the electric telescopic device 33.

[0048] The detection element 38 includes a detection plate 383 and a detection terminal 385. The detection plate 383 is rotatably mounted on the cross bar 362, the detection terminal 385 is mounted on the cross bar 362, the detection terminal 385 is located on one side of the detection plate 383, the detection terminal 385 is in contact with the detection plate 383, a detection roller 382 is rotatably mounted on the detection plate 383, a reset assembly 381 is installed between the detection plate 383 and the support plate 361, a marking assembly 384 is installed on the detection plate 383, a transmission member 3831 is installed on one side of the detection plate 383 close to the detection terminal 385, the transmission member 3831 is provided with an annular ramp, the transmission member 3831 is rotatably connected to the cross bar 362, and the transmission member 3831 is located inside the detection terminal 385.

[0049] The marking component 384 includes a marking shell 3841, which is installed on the detection plate 383. A marking liquid cavity 3843 is provided in the marking shell 3841, and the marking liquid cavity 3843 is filled with marking liquid. A sliding rod 3846 is slidably installed in the marking shell 3841, and a telescopic spring 3847 is installed between the sliding rod 3846 and the marking shell 3841. A baffle 3844 is installed at one end of the sliding rod 3846, and the baffle 3844 is embedded in the groove in the marking liquid cavity 3843. A transmission rod 3845 is installed on the baffle 3844. A marking ball 3842 is movably installed in the marking shell 3841, and the marking ball 3842 and one end of the transmission rod 3845 abut against each other.

[0050] The detection terminal 385 includes a detection housing 3851, a connecting piece 3852 and a sliding piece 3855. The detection housing 3851, the connecting piece 3852 and the sliding piece 3855 are all installed on the cross bar 362. The transmission member 3831 is located in the detection housing 3851. A touch rod 3853 is installed on the connecting piece 3852. A thimble 3854 is slidably installed on the sliding piece 3855. An end shell 3857 is installed at one end of the thimble 3854. An elastic film 3859 is installed in the end shell 3857. A piezoelectric crystal 3858 is installed between the elastic films 3859. A detection spring 3856 is installed between the thimble 3854 and the sliding piece 3855. One end of the thimble 3854 contacts the annular slope on the transmission member 3831.

[0051] When the steel plate cold rolling device is not running, the detection spring 3856 is in a naturally extended state, the feeler rod 3853 contacts one side of the elastic film 3859, the elastic film 3859 does not deform, and the ejector pin 3854 contacts the lowest point of the annular slope.

[0052] The reset assembly 381 includes a reset shell 3811 , which is mounted on the support plate 361 . A reset bent rod 3813 is slidably mounted in the reset shell 3811 . A reset spring 3812 is installed between the reset bent rod 3813 and the support plate 361 . The reset spring 3812 is located inside the reset shell 3811 .

[0053] The working principle of the present invention is as follows: before cold rolling, the control system starts the driving motor, the output shaft of the driving motor drives the universal shaft to rotate, and the universal shaft drives the cold rolling roller 6 to rotate through the transmission connecting member 4. After that, the control system starts the electric telescopic rod 342, and the output shaft of the electric telescopic rod 342 drives the scraper 343 to extend forward, so that the scraper 3432 of the scraper 343 is close to the cold rolling roller 6, so that only a small gap is left between the scraper 3432 and the cold rolling roller 6, and at the same time, the air pump 341 is turned on, and the air pump 341 sucks the dust in the dust chamber 3431 through the pipeline. The gas is extracted, causing negative pressure in the dust suction chamber 3431, and causing the dust suction port 3435 to generate suction, which will remove particles on the cold rolling roller 6. When there are attachments on the cold rolling roller 6, the shear force generated between the rotating cold rolling roller 6 and the scraper 3432 will scrape off the attachments, and the scraped attachments will slide into the dust suction chamber 3431 from the slope surface 3433 of the scraper 3432 with the suction, thereby cleaning the surface of the cold rolling roller 6 before cold rolling, and preventing the attachments and particles on the cold rolling roller 6 from causing indentations on the steel plate during the cold rolling process.

[0054] The thin steel plate coil is positioned and installed, and the steel plate end is passed through the cold rolling roller 6 and the cold rolling self-inspection component 3, so that the steel plate end is connected to the coiler, and the control system starts the electric telescopic device 33, and the output shaft of the electric telescopic device 33 drives the first detection component 36 to slide and descend along the connecting column 39, and the rack 363 on the first detection component 36 drives the transmission gear 351 to rotate, and the transmission gear 351 drives the rack 363 on the second detection component 37 to slide, and the rack 363 on the second detection component 37 drives the second detection component 37 to slide on the connecting column 3 9, the detection rollers 382 on the first detection component 36 and the second detection component 37 approach each other until the distance between them is consistent with the thickness of the steel plate to be tested, and then the control system turns on the electric lifting rod 2, and the electric lifting rod 2 drives the entire cold rolling self-inspection component 3 to move up and down, so that the gap between the detection rollers 382 is aligned with the gap between the cold rolling rollers 6 and maintained at the same horizontal plane, and the control system turns on the drive motor, and the drive motor drives the cold rolling rollers 6 to rotate, and the cold rolling rollers 6 rotate and cold roll the steel plate, and the cold-rolled steel plate is wound by the winder.

[0055] When the cold-rolled steel plate passes through the cold-rolled self-inspection component 3, the surface of the steel plate will contact the detection roller 382. When the surface flatness of the steel plate is qualified, the steel plate will smoothly pass through the gap between the detection rollers 382. When the steel plate has undesirable conditions such as bulges or wave edges, the unqualified area of ​​the steel plate cannot directly pass through the detection roller 382 corresponding to the area due to the increased height. The raised part of the unqualified area pushes the detection roller 382 of the area, and the detection roller 382 drives the detection plate 383 to deflect around the cross bar 362. When the detection roller 382 deflects with the detection plate 383, the distance between the upper and lower detection rollers 382 will increase, thereby allowing the unqualified area of ​​the steel plate to pass.

[0056] When the detection plate 383 deflects, the marking assembly 384 thereon deflects synchronously and contacts the unqualified area, and the marking ball 3842 in the marking shell 3841 contacts the unqualified area and generates extrusion, which causes the marking ball 3842 to slide slightly in the marking shell 3841, and the marking ball 3842 slides and squeezes the transmission rod 3845, and the transmission rod 3845 drives the baffle 3844 and the sliding rod 3846 to slide, and the baffle 3844 slides out of the engagement with the marking liquid cavity 3843, and the marking liquid in the marking liquid cavity 3843 flows out from the gap between the baffle 3844 and the marking shell 3841, and the outflowing marking liquid soaks the marking ball 3842, and when the unqualified area slides, the friction force drives the marking ball 3842 to roll, and the marking ball 3842 rolls When the detection element 38 is reset, the pressure on the marking ball 3842 disappears, and under the action of the elastic force of the telescopic spring 3847, the sliding rod 3846 drives the baffle 3844 to engage with the groove on the marking liquid cavity 3843 again, so that the marking liquid in the marking liquid cavity 3843 cannot flow out, thereby preventing the marking liquid from leaking and polluting the qualified area of ​​the steel plate.

[0057] When the detection plate 383 deflects, the transmission member 3831 will be synchronously driven to deflect. When the transmission member 3831 deflects, the ejector pin 3854 will climb along the annular slope along with the lowest point of the annular slope. The ejector pin 3854 climbs and slides on the sliding member 3855. The ejector pin 3854 drives the elastic film 3859 in the end shell 3857 and the feeler rod 3853 to squeeze each other. The elastic film 3859 is deformed after being squeezed and the pressure is transmitted to the piezoelectric crystal 3858. According to the principle of piezoelectric effect, the piezoelectric crystal 3858 will produce The electric signal is transmitted to the control system through the wire. When the unqualified area is large, the longer the time for driving the detection plate 383 to deflect, the longer the duration of the corresponding electric signal. When the height of the bulge and wave edge of the unqualified area is large, the larger the angle of driving the detection plate 383 to deflect, the greater the intensity of the corresponding electric signal. The control system can analyze the scope of the unqualified area and the degree of unqualifiedness, and can realize positioning according to the position of a single detection element 38, so as to complete the flatness detection of the steel plate. When the flatness of the steel plate is detected to be unqualified, the control system starts the cleaning component 34 to clean the cold rolling roller 6. When the flatness is still unqualified after cleaning, the cold rolling is stopped, and the staff checks the steel plate itself and other factors one by one.

[0058] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A steel plate cold rolling device with a flatness self-checking function, characterized in that: The steel plate cold rolling device comprises a base (1), an electric lifting rod (2) is installed on the base (1), a cold rolling self-inspection component (3) is installed on the output shaft of the electric lifting rod (2), a bracket shell (5) is installed on the base (1), a cold rolling roller (6) is symmetrically and rotatably installed on the bracket shell (5), the transmission shafts at both ends of the cold rolling roller (6) pass through the bracket shell (5) and are installed with a transmission connecting piece (4); the cold rolling self-inspection component (3) comprises a bottom plate (31) and a top plate (32), a connecting column (39) is installed between the bottom plate (31) and the top plate (32), a first detection component (36) and a second detection component (37) are symmetrically and slidably installed on the connecting column (39), and the bottom plate (31) is installed on the output shaft of the electric lifting rod (2).

2. The steel plate cold rolling device with flatness self-checking function according to claim 1, characterized in that: The cold rolling self-inspection component (3) also includes an electric telescopic device (33) and a side plate (35). The electric telescopic device (33) is installed on the top plate (32). The output shaft of the electric telescopic device (33) passes through the top plate (32) and is connected to the first detection component (36). The side plate (35) is installed between the top plate (32) and the bottom plate (31). A transmission gear (351) is rotatably installed on the side plate (35). The first detection component (36) and the second detection component (37) are meshed with the transmission gear (351) for transmission. A cleaning component (34) is installed on both the bottom plate (31) and the top plate (32).

3. The steel plate cold rolling device with flatness self-checking function according to claim 2, characterized in that: The first detection component (36) comprises a support plate (361), the support plate (361) is slidably mounted on a connecting column (39), racks (363) are mounted on both sides of the support plate (361), the racks (363) are meshed with a transmission gear (351) for transmission, two cross bars (362) are mounted inside the support plate (361), detection elements (38) are rotatably mounted on the cross bars (362) at equal intervals, the detection elements (38) on the two cross bars (362) are mutually staggered front and back, and the support plate (361) is connected to an output shaft of the electric telescopic device (33).

4. The steel plate cold rolling device with flatness self-checking function according to claim 3, characterized in that: The detection element (38) comprises a detection plate (383) and a detection terminal (385); the detection plate (383) is rotatably mounted on the cross bar (362); the detection terminal (385) is mounted on the cross bar (362); the detection terminal (385) is located on one side of the detection plate (383); the detection terminal (385) is in contact with the detection plate (383); a detection roller (382) is rotatably mounted on the detection plate (383); the detection plate (383) A reset assembly (381) is installed between the detection plate (383) and the support plate (361), a marking assembly (384) is installed on the detection plate (383), a transmission member (3831) is installed on the side of the detection plate (383) close to the detection terminal (385), and an annular ramp is provided on the transmission member (3831), the transmission member (3831) is rotatably connected to the cross bar (362), and the transmission member (3831) is located inside the detection terminal (385).

5. The steel plate cold rolling device with flatness self-checking function according to claim 4, characterized in that: The marking assembly (384) comprises a marking shell (3841), wherein the marking shell (3841) is mounted on the detection plate (383), wherein a marking liquid cavity (3843) is provided in the marking shell (3841), wherein the marking liquid cavity (3843) is filled with a marking liquid, wherein a sliding rod (3846) is slidably mounted in the marking shell (3841), and a sliding rod (3846) is mounted between the sliding rod (3846) and the marking shell (3841). A telescopic spring (3847) is provided, a baffle (3844) is installed at one end of the sliding rod (3846), the baffle (3844) is embedded in a groove in the marking liquid chamber (3843), a transmission rod (3845) is installed on the baffle (3844), a marking ball (3842) is movably installed in the marking shell (3841), and the marking ball (3842) and one end of the transmission rod (3845) are in contact with each other.

6. The steel plate cold rolling device with flatness self-checking function according to claim 4, characterized in that: The detection terminal (385) comprises a detection housing (3851), a connecting piece (3852) and a sliding piece (3855); the detection housing (3851), the connecting piece (3852) and the sliding piece (3855) are all mounted on the cross bar (362); the transmission member (3831) is located in the detection housing (3851); a touch rod (3853) is mounted on the connecting piece (3852); and a sliding member (3855) is slidably mounted on the sliding piece (3855). There is a pin (3854), one end of which is mounted with an end shell (3857), an elastic film (3859) is mounted inside the end shell (3857), a piezoelectric crystal (3858) is mounted between the elastic films (3859), a detection spring (3856) is mounted between the pin (3854) and the sliding member (3855), and one end of the pin (3854) is in contact with an annular slope on a transmission member (3831).

7. The steel plate cold rolling device with flatness self-checking function according to claim 4, characterized in that: The reset assembly (381) comprises a reset shell (3811), wherein the reset shell (3811) is mounted on a support plate (361), a reset bent rod (3813) is slidably mounted in the reset shell (3811), a reset spring (3812) is mounted between the reset bent rod (3813) and the support plate (361), and the reset spring (3812) is located inside the reset shell (3811).

8. The steel plate cold rolling device with flatness self-checking function according to claim 2, characterized in that: The cleaning assembly (34) comprises an electric telescopic rod (342) and an air pump (341); the electric telescopic rod (342) is mounted on the top plate (32) and the bottom plate (31) respectively; the air pump (341) is mounted on the top plate (32) and the bottom plate (31) respectively; a scraper (343) is mounted on the output shaft of the electric telescopic rod (342); and the air pump (341) is connected to the inside of the scraper (343) through a pipeline.

9. The steel plate cold rolling device with flatness self-checking function according to claim 8, characterized in that: The scraper (343) is provided with a scraper (3432), one side of the scraper (3432) is a sloped surface (3433), and the other side of the scraper (3432) is a concave surface (3434), and the concave surface (3434) is used to prevent position conflict with the cold rolling roller (6), and a dust suction chamber (3431) is provided in the scraper (343), and a dust suction port (3435) is provided on one side of the scraper (343).

10. The steel plate cold rolling device with flatness self-checking function according to claim 1, characterized in that: The transmission connecting member (4) is externally connected to a driving device, the driving device comprising a driving motor, a universal shaft is mounted on the output shaft of the driving motor, and the universal shaft is connected to the cold rolling roller (6) via the transmission connecting member (4).

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